Empirical Sleep & apnea care2.12.6 - App Store

Your Apple Watch tracks sleep stages, heart rate, heart rate variability (HRV), blood oxygen, ECG, temperature, sleep apnea, breathing disturbances, and more-but what does all that data mean? More importantly, what do you actually do to get more shut eye?

If your Apple Watch detects sleep apnea, get medical care covered by insurance.

Empirical Sleep distills your Apple Watch health data into one simple sleep score, then suggests actions to help you improve your sleep duration, onset, and quality. Unlike other free sleep trackers for Apple Watch, we're focused not just on more data, but helping you actually sleep better and get more shuteye.
** Sleep score **
Our sleep score auto combines everything into one simple number, including the percentage of time you spend in REM sleep, deep sleep, your heart rate, HRV, and oxygen during sleep, your sleep duration, and how long it took you to fall asleep.

On the checkup screen, you can monitor your health stats against other users of Empirical Sleep and medical norms to understand where you're above, below, and right around the average.
** Take action to improve your sleep **
The goal of all this health monitoring isn't just tracking-it's to act and get better shuteye. The goals tab suggests a comprehensive plan to improve your sleep, including assessing sleep hygiene and risk of sleep apnea.
** Monitor your risk of sleep apnea **
1 in 8 adults have sleep apnea. What's more, 80% of people with sleep apnea don't realize they have it. On the checkup screen, assess your risk of sleep apnea using a medically-validated questionnaire. If you receive an Apple Watch sleep apnea alert, book a priority appointment directly with a doctor for sleep apnea testing and treatment.
** Native Apple Watch app **
View your sleep duration, onset, quality, and stages (REM/deep/core/awake) directly on your watch using our native Apple Watch sleep app.
** Watch face & iPhone lock screen widgets **
Display your sleep stages, sleep duration, onset, and quality directly on your watch face or your iPhone's lock screen, using the new widgets introduced in iOS 16 and watchOS 9.
** Compatible, integrated with health, and free with an optional subscription **
Empirical Sleep is compatible with Apple Watch Series 3 and above. It integrates with the Health app to auto track your sleep segments, heart rate, HRV, blood oxygen (SpO2), steps, sleep stages, breathing disturbances, sleep apnea alerts, and activity. Empirical Sleep is a free app to download, with an optional paid subscription.
** About Empirical Health **
Empirical Health's mission is to build proactive healthcare. Today's healthcare system spends $1.1T reacting to chronic conditions and only a tenth of that on prevention. Our goal is to flip that and build a new type of primary care that's preventive rather than reactive, starting with sleep.

Please seek a doctor’s advice in addition to using this app and before making any medical decisions. If you need a doctor, you book a video visit directly through this app. We accept most major health insurance.

Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.

2.12.6 fixes bugs. 2.12 introduced support for breathing disturbances and sleep apnea notifications. 2.12.6 12/04/2024 2.12.5 fixes bugs. 2.12 introduced support for breathing disturbances and sleep apnea detection. 2.12.5 12/03/2024 Empirical Sleep 2.12.4 fixes a bug where sleep duration would be underestimated. 2.12 adds support for breathing disturbances and sleep apnea detection. 2.12.4 10/15/2024 2.12.13 fixes a bug loading health stats. 2.12 introduces support for sleep apnea notifications and breathing disturbances on Apple Watch Series 9, 10, and Ultra 2. 2.12.3 10/02/2024 Empirical Sleep 2.12.2 fixes bugs. Empirical Sleep 2.12 introduced support for sleep apnea alerts and breathing disturbances on Apple Watch Series 9, 10, and Ultra 2. 2.12.2 09/27/2024 Empirical Sleep 2.12 introduces support for Apple Watch's new sleep apnea notifications. It also fixes bugs in the checkup screen. 2.12 09/20/2024 2.11 redesigns the goals screen: now there's a clear, step-by-step workflow to evaluate your sleep hygiene, risk of sleep apnea, and make an appointment with a doctor if necessary. 2.11 06/07/2024 2.10.3 fixes bugs. 2.10 improved the aesthetics of the primary screen and display of sleep data. 2.10.3 03/21/2024 2.10 fixes a crash when editing, and improves the aesthetics of some screens. Keep the bug reports coming! 2.10 12/21/2023 Empirical Sleep 2.9.2 fixes bugs when computing sleep hygiene, when activating care, and when editing sleep. 2.9.2 10/18/2023 Empirical Sleep 2.9.1 fixes a major bug where Health permissions would not be requested. 2.9.1 09/27/2023 Empirical Sleep 2.9 is compatible with iOS 17 and watchOS 10. 2.9 09/20/2023 Empirical Sleep 2.8 launches medical care in four additional US states. 2.8.0 08/23/2023 2.7.1. fixes bugs. 2.7.0 introduced features to speak directly with a doctor. 2.7.1 08/08/2023 In select US states, chat directly with a medical doctor about your sleep apnea risk results and get next steps. 2.7.0 07/28/2023 Empirical Sleep 2.6.0 improves the accuracy of sleep onset time. 2.6.0 06/19/2023 2.5.4 fixes bugs. 2.5.0 generated sleep data even on nights when sleep stages are missing. 2.5.4 05/04/2023 2.5.3 fixes small formatting bugs on small screens. Empirical Sleep 2.5 now shows data even when sleep stage information is missing for a night. 2.5.3 05/01/2023 2.5.2 fixes a bug where sleep duration would sometimes be over-reported. 2.5.2 04/24/2023 Empirical Sleep 2.5 now shows data even when sleep stage information is missing for a night. It also fixes several bugs, including when editing sleep data. 2.5.0 04/21/2023 Empirical Sleep 2.4.4 includes the follow changes:
- Swipe left or right to change the date
- Fixes a crash in the native Apple Watch app
- Improves onboarding, and introduces additional diagnostics when there is a problem connecting with the Health app 2.4.4 04/14/2023 2.4.3 adds sleep score to the Checkup screen, and makes loading faster. 2.4.3 04/11/2023 2.4.2 redesigns the sleep hygiene screen, as well as fixes bugs. 2.4.2 04/06/2023 2.4.1 fixes a bug where sleep onset time would be overestimated, and adds support for two upcoming in-app events. 2.4.1 04/02/2023 Empirical Sleep 2.4 lets you edit your sleep, adds a medical history tracker, and fixes bugs. 2.4.0 03/17/2023